Exhaust-steam injector for locomotives and the like



30 1927. Aug E. BLAUHORN l EXHAUST STEAM 'INJECTQR FORLOCOMOTIVES AND THE LIKE Filed April 24, 1925 Emanuvez .BZau/-om Patented Aug. 30, 1927.

EMANUEL BLAUHORN, OF VIENNA, AUSTRIA.

EXHAUST-STEAM INJECTOR FOR LOCOMOTIVES AND THE LIKE.

Application led April 24, 1925, Serial No. 25,704, and in Austria May 20, 1924.V

This invention relates to exhaust steam injectors of t-he type which may be operated by exhaust steam and live steam simultaneously as well as with live steam alone,

which comprises at least two co-axial cones arranged in series, one of these cones being supplied with live steam alone, while the other is supplied with live steam from the live steam cone and with exhaust steam.

Injectors of this kind haveva relatively great ,j overall length when compared with ordinary live steam injectors, which is due to the great length of the arrangement of the two steam cones in series and to the circumstance that generally also a-number of intermediary cones must be inserted between the exhaust steam cone and the delivery cone. Now it has always been considered to be an essential feature in injectors of this kind, that the axes ofthe several cones must be strictly coincident to ensure satisfactory working of the injector. TheV diliiculty to fulfil this requirement increases however with the increase of the to-tal constructional length of the injector as the threads and the other bearing and guide faces for the cones must be bored or turned from one and the same side only, to ensure strict axial coincidence of the same. Now a number of tests 30. made with an exhaust steam injector of the kind mentioned have shown, that the strict coincidence of the axes of the cones must exist only between the live steam cone, the exhaust steam cone on one hand and the 35 combining cone and the delivery cone on the other hand while slight devi'ations'between the axes of the aforesaid two series of cones are not vital and do not impair seriously the satisfactory operation of the injector.

This fact, which we have discovered enables us t0 construct aninjector of the kind specified, with a dividedcasing, the division of the casing being made in such a manner that each of the two parts contains the noz- 45, zles that should have a strict coincid-ence of the axes. Therefore one part of the casing contains the two steam cones and in some cases the mixing or water cone, while the Y 55. ings is of coursesmaller than that of the 1 entire injector the manufacturing of the threads or guides of the cones that have to be provided with strictly coincident axes is easier anda greater accuracy in the coincidence of the axes of the boreholes or screw threads may be obtained for the several nozzlesjust at those places, where such accuracy is required.

The accompanying drawing illustrates one constructional embodiment of the invention. l and 2 are the two parts of the CasinOV A, which form the body of the injector'anc may be separately manufactured and fastened or united afterwards as shown f. 1.

by means of kflanges., The part 1 contains the live steam cone 3, the exhaust steam cone i and water cone 5, while the second part 2 contains the combining vcone and the delivery cone. The intermediary cone 7 arranged between the water cone and the combining cone may either be arranged within the part '1 of the casing as shown in the figure or 2. An injector of the character described comprising a live steam cone and an exhaust steam cone, a combining cone and a delivery cone, and separable casing parts respectivelyl containing the exhaust steam cone and the combinin cone.

3. An injector of the character described comprising a live steam cone and an exhaust steam cone, a mixing cone, a combining cone anda delivery cone, and a casing for' said injector including two separate parts, the first of said parts containing the live steam cone and the exhaust steam conc, theV second part containing the combining and the delivery cone, and one of these'two parts containing the mixing cone.

4. In an injector of the character described a group of supply cones including a live steam cone and an exhaust steam cone,

a second group of'cones receiving the dis- Y charge from the first group of cones, and separableV casing parts each housing one of the said groups of cones.

In testimony whereof I aii'ix mysignature.

` EMANUEL BLAUHORN. 

